Answer
a. $^{60}_{27}Co$
b. $^{22}_{10}Ne$
c. $^{131}_{53}I$
d. $^{244}_{94}Pu$
Work Step by Step
1. Find "Z" for each element in a periodic table.
a. Z = 27
b. Z = 10
c. Z = 53
d. Z = 94
2. The mass number, "A", is the number after the name of the element, therefore, we have all informations. Write the symbol using this form: $^A_ZX$
** You can find the symbol for each element in a periodic table.
a. $^{60}_{27}Co$
b. $^{22}_{10}Ne$
c. $^{131}_{53}I$
d. $^{244}_{94}Pu$
